Free rocking response of a regular stone masonry wall with equivalent block approach: experimental and analytical evaluation

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Alexandre A. Costa (Author) Other; António Arêde (Author) FEUP; Andrea Penna (Author) Other; Aníbal Costa (Author) FEUP

Journal

Title: Earthquake Engineering and Structural Dynamics

Vol. 42 No. 15

Pages: 2297-2319

ISSN: 0098-8847

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 19 Citations

ISI Web of Science

Scopus - 22 Citations

Scientific classification

CORDIS: Technological sciences > Engineering > Civil engineering > Structural engineering

Other information

Authenticus ID: P-008-GA6

DOI: 10.1002/eqe.2327

Abstract (EN): The evaluation of the dynamic behaviour of rocking elements is directly correlated to the energy dissipated because of the impacts at the base interface, which can be represented by means of a coefficient of restitution. This schematization is commonly accepted as representative of the out-of-plane response of stone masonry walls. An experimental campaign (in a lab environment) aiming at assessing the value of this coefficient for a sacco granite masonry wall is presented in this work. The rocking motion at a predefined bed joint level was induced in the tested specimens in order to validate a novel test setup designed to assess the coefficient of restitution value by means of a realistic reproduction of the rocking behaviour of a single element, under the hypothesis of an infinitely stiff system above the bed joint level. As the main objective of the work was to assess the rocking behaviour of a masonry wall that looses energy at the impacts at a certain joint level, the flexural behaviour was not desirable and had to be avoided. For this purpose, a test setup based on the equivalent block approach was developed. In the final section of this work, comparisons between experimental and numerical results are presented together with some preliminary conclusions on the appropriate modelling strategy and the values of the coefficient of restitution to be used for the seismic assessment of the out-of-plane rocking behaviour of this type of sacco stone masonry walls. Copyright (c) 2013 John Wiley & Sons, Ltd.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 23